WASHINGTON (Reuters) -The arrest of a Wisconsin state court judge for allegedly helping a migrant evade U.S. authorities marks another salvo in a long-brewing debate about the presence of immigration agents in local courthouses. The judge, Hannah Dugan of Milwaukee County’s circuit court, is due in federal court on Thursday to face charges of obstruction and harboring an individual due to face arrest. Dugan’s legal team argues she will be exonerated.